refactor: fix uses of empty() calls
#1430
| Job | Run time |
|---|---|
| 5m 35s | |
| 5m 33s | |
| 5m 42s | |
| 5m 19s | |
| 6m 17s | |
| 28m 26s |
empty() calls
#1430
| Job | Run time |
|---|---|
| 5m 35s | |
| 5m 33s | |
| 5m 42s | |
| 5m 19s | |
| 6m 17s | |
| 28m 26s |